login: panic: kern_ftruncate(): VOP_GETATTR didn't return 0
cpuid = 1
Trace beginning at frame 0xfffff801185a3798
kern_ftruncate() at kern_ftruncate+0x152 0xffffffff80705e22 
kern_ftruncate() at kern_ftruncate+0x152 0xffffffff80705e22 
sys_xsyscall() at sys_xsyscall+0x89 0xffffffff80bd7039 
syscall2() at syscall2+0x11e 0xffffffff80bd6a0e 
Debugger("panic")

CPU1 stopping CPUs: 0x0000003d
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>